Displacement generating apparatus
US5083056A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Feb 14, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/2042
Abstract
An electrostriction actuator comprises upper and lower electrostriction boards, having electrodes individually on either side thereof, and a conductive shim interposed between the inside electrodes. The actuator has a fixed end at one end thereof and a free end for bending movement at the other end. An amplifier for supplying driving voltage to the actuator is an inverted amplifier, whose output terminal is connected to the shim, so that an output voltage is supplied to the inside electrodes. The outside electrode of the upper electrostriction board is connected to a power source (not shown) for supplying constant voltage to the amplifier, and the outside electrode of the lower electrostriction board is connected to a power source (not shown) for supplying constant voltage to the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.